Ferrea Competition Plus Valves are widely recognized as one of the most dependable extreme duty valves available

these high-performance valves offer exceptional strength and heat resistance

5PSI system compatible with manual and DCT

paddle shifters

having demonstrated exceptional longevity and superior performance compared to other bearings available in the market

5150 Xtreme Duty Cylinder Sleeve Set, BMW S55 S54B32 Ferrea Competition Plus Valves are5150 Xtreme Duty Cylinder Sleeves, also known as cylinder liners, are centrifugally cast, ductile iron cylinder sleeves. Benefits of Engine Sleeving Include: Increased Bore Size: Sleeving your engine gives the opportunity to increase bore size for higher displacement and increased engine capacity, resulting in more power and more torque Increased Strength: Iron sleeves are stronger than alusil when subjected to high power, high stress applications,